Axle-box fob



28111-41111.. o. N. FRENCH. ees ee l Car-Ax1e 130x. No. 8,220. IPatented July 15, 1851.

1 y1 ,QN L# 111111 n i 11111111111 11M 11111 11111 0. N. FRENCH.

l v(Earn/50de Box.

No. 8,220. yPatented July 15, 1851.

' 2 Sheets-Sheet `2.

STATES PATENT 1 OLIVER N: FRENCH,` OF "LONDON, CONNECTIGUT, ASSIGNOR TOOLIVER N. FRENCH STEVENS,` OF HOPKIHNTON, NEW HAMPSHIRE. f

j `AxLE-Box non JOURNALS roltnarmtonnfcans.

Specification `of Letters Patent No,A 8,220, dated 1J 15 `Il/8,51.`

To all whom t may concern: j j

Be it known that I, OLIVER N. FRENCH, of New London, in the county ofNew London and State of Connecticut, have invented a new and usefulImprovement in Axle- Boxes for Journals of Railway-Carriages; and I dohereby declare that the same is fullydescribed and` represented in thefollowing specification and accompanying drawings, letters, "figures,and references thereoi'.` i j Of the said drawing Figure 1, denotes aside elevation of `one ofmy improved boxes as made for inside bearingsor in other words, for an axle, whose journals are between the twowheels. Fig. 2, is a rear end view of the same. Fig. 3, is a centralvertical and transverse section of the boxand axle. Fig. 4, is a centralvertical and longitudinal section of the same. j j f My improvementalthough represented as "applied to inside bearings Iis equallyapplicable to outside bearings. The object or purpose of it, is to`entirely dispense with screw bolts, nuts or contrivances of likecharacter, to hold any one or more of the parts of the box together,asit is well known that their liability to `become loosened by reason ofthe constant shocks, concussion,

and jar produced by the wheels and irregularities of the rails, of thetrack, is such as to often require careful inspection, and tightening upon the part of those in charge. In the` said drawing it represents thecase of the box. In the `common manner of constructing such case it hasbeen made with its top cast in one piece with its sides, and with anopening through one side, which opening had to be covered bya cover orplate secured in place by screws` In my improved box the top a, is madeseparate from the sides, and has the cover plate b of the side openingcast at right `angles to and in one piece with it.` Each of the twoopposite sides of the case A,has a projection or shoulder o or c', castor formed on `its inner surface, and at its upper part as seen j -torest upon thel axle or journal D. i The cover plate b and the end d, ofthe case, are

each provided with a semicircular recess or at E as groove for thereception of a semicircular packing e or e', of leather which is placedorder to preventthe admission of dirt or extraneous matter into the box.

\ Aport-ion of the hub of the wheel is seen placed outside of the boxand on the axle. I i

In order to keep the top a and side plate b in place each side plate for f', has a rectangular projection g from and cast upon its top, andwhen t-he top is placed on the a corresponding recess h cast or formedup in them and made to surround the axle, in j Vsides such projection ismade to enter into i j into the top plate a. The checks k la of the boxextends up above the top surface of the a sides f f, in order to holdthe top a, in place in directions transversely of the axle.

Fig. 5 shows a vertical *central and longi- `jtudinal section 1 ofniyimproved box, as-` made for outside bearings or those for journals whichproject beyond the outer sur` face of a wheel. Fig. 6, is a verticalcentral and transverse section of such box. Fig.`

T, is a side view of it. In the said figures, A denotes, the case of thebox, B isthe bearing, C the axle, D the journal thereof, F is the slideplate such as is now in general use,

and is` known as the improvement patented on `the tWenty-rst day ofNovember leighteen hundred and forty-eight by John Sightener.

a, is the movable top plate of the box,

while is the cap or cover plate cast to it and making one piece with it.

c'. c, are thel projections from the sides f, f, of the case,jthe slideplate F, being made to extend underneath and rest against the same,while the bearin B rests against the under side of such side plate. Thechecks are seen at lc, 7c.

I, is the spongeand oil reservoir, while K, is the leather `packingextending around the axle. g denotes the projection and 7L the recess asbefore` described.

What I claim as my invention or improvement is- To support the case A,or the bearing B, by projections c, 0, or analogous contrivances appliedto its sides in combination with making the top `plate a of the case andthe cap orside plate b, in one piece, separate from the rest ofthe case,and holding them inplace by'recesses and projections or analogous,contrivanees subst-anattendant so necessary when boxes are used, tiallyas described, the Whole being to enhaving any of their parts secured byscrews. able me to entirely dispense with t-he use of In testimonywhereof I have hereto set my 10 the screws or screws or nuts in theconstrucsignature this twenty-fourth day of May tion of a railway ear,aXle box, and thereby A. D. 1851.

avoid not only the injurious consequences OLIVER N. FRENCH. Whichfrequently result from their becom- "Witnesses: ing loose, but also thenecessity of that care WILLIAM I-I. GRIGGS,

and attention on the. part of the Carman or ISAAC W.DOW.

